Sectional boiler.



W. M. BUTLER.

SEGTIONAL BOILER.

APPLICATION IILED mmzs, 1912.

- 1,089,747. Patented Mar. 10, 1914 3 SHEETS-SHEET 1.

Patented Mar. 10, 1914 3 SHEETS-SHEET 2.

W. M. BUTLER. SEOTIONAL BOILER APPLIOATIDKI'IIJJD JANJS, 1912.

7 44' f 7% %1g abtomwu J W M. BUTLER.

SECTIONAL BOILER.

APPLICATION FILED JAN. 23. 1912.

1,089,747. Patented Mar. 10, 1914.

3 SHEETS-SHEET 3.

WILLIAM M. BUTLER, OF SYRACUSE, NEW YORK.

SECTIONAL BOILER.

Specification of Letters Patent. Patented Mar. 10, 1914- Applieation filed January 23, 1912. Serial No. 672,878.

To all whom it 7/2 113 concern Be it known that I, \Vummn M. Burner, of Syracuse, in the county of Onondaga, in the State of New York, have invented new and useful Improvements in Sectional Boilers, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention relates to certain improve ments in sectional boilers for steam or hot water in which the hollow upright end and intermediate sections are mounted side by side upon a suitable supporting base and connected for continuous circulation of the water or steam therethrough from one to the other and are also provided with commnnicating fire passages for continuous circulation of the products of combustion, the

front portions of the intermediate sectionse'xtending upwardly and forwardly from the rear of the fire box to a plane directly over the front of the fire box so as to form with the front section a fire pot having an inlet in its upper side.

The main object is to provide the upright hollow sections with registering openings constituting an auxiliary combustion chamber communicating through relatively small passages with the main combustion or fire pot. some distance below the fuel inlet so as to produce a down draft across the surface of the fuel and into the auxiliary com bustion chamber for increasing the combustion of the gases, thereby obtaining a greater heat efficiency from a given quantity of fuel.

Another object is to cause the highly heated products of combustion in the auxiliary combustion chamber to traverse relatively large areas of all of the sections and return before escaping to the stack or chimney and to make the walls of the lire passages relatively shallow so as to cause the water to absorb a maximum degree heat in transit from the auxiliary chamber to such stack or. chimney.

Other'objccts and uses relating to specific parts "of the boiler will be brought out in the following description.

In the drawings Figure 1 is a perspective view of my improved boiler partly broken away to show more clearly the combustion chamber and fire passages. Fig. 2 is a hori zontal sectional view through the lower portions of he boiler sections taken on line 2-2, Fig. 1, the central portions thereof being broken away and the grate and underlying base beingomitted. Fig. 3 is a transverse,Wertical sectional view of the same boiler taken on line 33, Fig. 1 showing particularly the interior construction and relation of the intermediate section and front section. Fig. at is a horizontal sectional view of the boiler taken in a plane just above the top of the front section showing particularly the connection between the fire passages of the several sections. Figs. 5 and 6 are perspective views of opposite sidcs of one of the intermediate sections of the boiler. Figs. 7 and 8 are perspective views respectively of the left-hand end and right-hand end sections of the boiler. Fig. 9 is a perspective view of the front boiler section. i p

The boiler roper is mounted upon a 1101-- low rect-an u ar supporting base -lhaving a suite le ashpit 2' and rate --3 together with a door --l for t e removal of ashes, said boiler comprising hollow upright end and intermediate sections -5,

-6- and 7-1 and a hollow front section -8. The boiler sections -5-, --6- and 7- are arran ed side by side in close juxtaposition and are provided near their lower and upper sides with intercommunieatingpassagesf0rmed by connecting nipples -10- which are seated in correspondingly tapered openings in the adjacent portions of the sections to form water tlght joints, and also for receiving suitable clamping bolts 11- by which the sections are tied together and held in operative relation. The distributing systenr (not shown) may be connected in any suitable manner to the upper and lower portions. of the hollow boiler sections forv the upflow and return of the heating fluid such as steam or hot water. The hollow sections --5--, 6- and. -7- are preferably. made of cast metal having relatively thin walls of large area exposed to the heat and are comparatively low shallow transversely of their surfaces of greatestpra so 'as to allow the heat to be more qu ckly absorbed by the water therein or rather for the purpose of more quicklyraising the temperature of such water. The fr nt section 8- is therefore of snbstnntially the same length from side to side as the combined widths of the intermediate best sections --*Z and is connected near its lower edge with the interiors of the end sections '5 and -6 by nipples l0 similar to those employed for connecting the intermediate sections '7 with the end sections, said front section being secured in place to the front portions of the end sections by means of clamping bolts l2' as seen in Figspl and 2. 'lhe intermediate sections 7 are substantially triangular and arranged with their" wider portions at the top and with one angle resting upon the base 1-- at the rear of the grate 3- so that their front edges incline upwardly and forwardly to overhang the grate and to form with the front section -S a fire box or fuel chamber -l3, the upper front portions of said intermediate sections being disposed insubstantially the vertical plane of the front sides of the grate. The front section 8 has its lower edge resting upon the 'base1- at the. front of the grate and .inclines upwardly and forwardly therefrom but at a less angle than that of the. front edges of the intermediate sections so that the lower portion of the fire box" is of greater depth from front to rear than the upper portion, the vertical height of the section -8 being slightly lessthan that of the sections -5'-'and' 6 and its'intermediate portion is spaced apart from the front edges of the intermediate sections to.

form a fuel inlet 14- which is normally covered by alid -15 as best seen in Figs.

1, 3 4c and 8. The end sections -5 and 6-- are of substantially the same form at the top and back as the intermediate sections -7- but extend forwardly some disitance beyond the front edges of the lower portions of said intermediate sections to the front side of the grate and preferably across the ends of the front section -8 to which they are secured, thereby forming the end walls of the fire box or main combustion chamber, the top of the front section -8- being extended rearwardly against the front edges of the upper portions of the intermediate sections to form a gas tight joint ther with. h The lower front portions of the interme: diate sections are provided with. openings 1(3-- registering with each other to form an auxiliary combustion chamber and up wardly and forwardlyinclining'water legs or hollow braces '-l7f.-- which are com aratively shallow from'front to rear an arc ,provideduwith one or-more, in this instance two, vertically elongated slots or fire passages '"*18"c'onnec'ting the main and aux- 'iliary} combustion :jchambers -l3- and -].6 These water legs 1 7- are comparatively shallow from front to rear and by forming the vertically-elongated fire passag s -18- therethrough, it is evident: that the Water in fl? portions of the sections is'split up into relatively small. bodies and. therefore quickly heated by reason of the large area exposed to the. heat on all sides. These fire passages ---1S-- connecting the main and auxiliary combustion chambers are located some distance below the fuel inlet and therefore there is always more or less draft from the inlet. downwardly and rearwardly across the surface of the fire tending to accelerate the ignition andconsumption of any gases which may accumnlate in the auxiliary combustion chamber -1(3, thus producing a maximum. degree of heat with a minimum quantity of fuel. For a like purpose the upper front portions of the intermediate sections provided with laterally extending registering openings -19 therethrough communicating with their respective openings l6 through suitable passages ---20-- in corresponding, sides thereof as best seen in Figs. 4 and 6, thereby permitting the products of combustion to pass from the fire box through the passages 18-- into the auxiliary fuel chamber 16 and thence through the passages -20- into the openings -19-., the passages -20- being formed by making these portions of the hollow sections somewhat thinner than the remaining portions,- still leaving communicating passages for the water. In practice, however the branch passages as -2l connecting the openings -19-- with the main passages -20- are somewhat constricted by hollow flanges -22 which project partially acr the front sides of the passages 20-- as shown more clearly in Fig. at, thus retarding in a measure the too free escape of theproducts of combustion into and from the openings -l9-. portions of the intermediate sections are provided with horizontally extending registering openings 23- forming a continuous flue from end to end and .unnmnicating atone end with the corresponding end of the flue formed by the openings -l9- through a passage in the adjacent end section 6-- as shown more clearly in Fig. 4, said end section beingprovidcd on its inner side with branch openings 2!'-- and .'-'26 registering respectively with the openings l9 and -23- in the adjacent intermediate section -7.

The fire passage 24- is' preferably formed in the section -6- midway between its inner and outer faces, leaving relatively Shallow water chambers at opposite sides thereof so as to additionally expedite the In like manner the rear upright the passages -----."l8---- and into the uuri'iliury combustion chonibcr --'.!.(5 where tho gases from the fuel arc consumed and tho insultant products of combustion continuc lhcir transit as im looted by the arrows in llii l and i upwai y )lit the pan-surges brunch passages ---.2Il----- and into the lion and openings --l.9--- and tluinec lat inlly through said lluc oponmgs a: l paunuge and in this manner the ---2 l-- into tho flue. openings 55} u out to the chimncy heated. products are caused to trawl vorticolly and forwardly between tho auctions and thence horizontally from sidc to side and rcarwn-rdly of; one end and rcturn horn zontally through the opposite llue openings --..,3-- to tho chi'o'incy the rcturn lluccs ho Ling located at the trout and roar oi? the upflow passages as shown morn clcurly in Fi 4t.

t will be neon troni this comstructimi that the bodies oi. water in tho soveral sections are split up into relatively small i' unntitics which are cxposed to relatively largo heating areas and that by causing the heated products to flow upwardly betwecn tho horizontal return fines, I am. cnahlcd. to produce 0, rapid conversion of tho water into steam when steam isrrequired or n rupid heating and circulation of hot water when the latter is cmploycd as the heating mcdium. It is also ovidcnt that tho hoilcr mo he built up or rcduccd at will by mul tipl fying or reducingthe number of intermeduite sections tho end sections bcin the same for all boilers although the front sectidn must be adapted. for the particular sine ofl 'hoilcr with which it is to be used.

What I claim in:

' 1. An upriglit boiler section having a rear upright waterdc nnd a hollow water-front inclining upwari ly and forwardly from the base of the watching und portions thereof spaced apart therefrom to form an intervening, combustion chamber, said inclined water-front communicating with the waterleg above and below said combustion chamber and provided with u firo passage therethrough from front to rear and Sl'lllt'OUlldBt'l by water space.

2. A sectional. boilcrcomprisinn a base having an ashpit and grate, hollow no downwnrdiy nnd' rearwurdly right cnd and iutcrinediatc sections scoured togcthcr side by side and having communicating water chambers, the front edges of: tho inicrmodiatc sections inclining upwardly and l'orwurdly from the rear edge of the grate, und l'ront sections rcsting upon thc linsc and iiwliuing; upwardl and forwardly tlu-i,i,-l'roni :it the front side of the grutc and connoct-cd to the cud scctions to form therewith and with the front edges of the inter' mwliutc Slil'tillllrl a. tin; box, the lower front ortions oi the iutcruuuliotc sections being pl'UVlflPtl with lmrixontully cxtcnding firc pal n registering with oacli other to form an nuxiliary cmnbimtion chmnbcr, the portions: ol' the intcrmei'linlc sections between sniil liru passages and lirc poi. being pro Yidcd with vertically olongalcd lire passag'cs connecting thc lirc box with th: auxiliary combustion chamhur, said inlrrmcdiatc sections being also lll'OVllllfl with upright lirc hostages in oorruspomllug sides [hex-col and with sepnrnto of openings therethrougli in: {)Pi'Hlt-ltt} uidm ol' the upright passages, those oil ouch not region-ring with encli other to form lllu-s, one of the end sections being provided with n liro pass go connecting the adjailvent ends oi ihc lines.

3. An upright boilcr-scci ion having :1 real upright water-leg and a hollow wntcr front inclining npwnrdly and l'orwnrdly from the has-o of the willow-log nod having portions thorco'l' opnccd apart iluiriai'rom to jl orm an intervening combustion chamber, said in-- clinr-d waterfront conilluminating with the walculcg above and below the combustion chainlic' and jiroviilcd with a tire passage thcrctln-ough from front to rear and surrouinlcd by water spucc, the water-leg being proviilcd with a transverse lirc passagc thoi'eiln-ougli from side to sidc. V

it. boiler compriaiug hollow upright cod and inlormediute SUUilUIlS arranged side by side, and a hollow upright front section coconut in the end sections, the front edges oi. the intnrmcdinte sections beinginclined at an angle .with the rear face of tl front section, upright passage-wows through the intermediate sections and connecting with a horizontal pnssagoway, vertical channels in said sections connecting said horizontal passage way with a second passage-way, and a third passage-way connected to the second by a passage through one end section.

A boiler comprising hollow upri ht end and intermediate sections arranged sldc by side, and a hollow upright front section secured to the end sections, the front edges of the intermediate sections being inclined downwardly and rcarunrdly at an angle with tho rear face of the front section "to form o lire box gradually increasing in width from front to rear from top to bottom, tho intermediate sections having front and rear sets of registering fire fines, and 'an-intermediate set of registeringopenings forming an auxiliary combustion chamber, at the rear of the fire box, said intermediate sections also having one set of passages connecting the fire box and combustion chamher and another set of passages connecting such chamber with the front set oftlues, one of the end sections having a passage connecting the adjacent ends of the front and. rear fines.

6. A sectional boiler comprising rear, hollow, intermediate and end sections and a front hollow section, all connected 'for the continuous passage of water, openings through each intermediate section registering to forn'rtlues, one of said fines in direct connection with the firepot, a second in direct connection with the first, and a third fine connected with said second flue by a passage through an end section.

7. A sectional boiler (.OIlIPllSlIlg hollow,

intermediate and end sections and a front hollow section, all connected for the continuous passage of water, openings through each intermediate section registering to form tlues, two of said lines extending over the fire-pot and one of them in direct conuection therewith, and a third flue connected with one of the first fines by a passage 7 through an end section.

8. A sectional boiler comprising intermediate and end sections arranged side by side and a hollow upright front section se cured to the end section, the intermediate sections having lower front, upper front and r .111 lines, the lower front line directly connected to the fire-pot and to the upper front flue. the upper front ilue connected to the rear llue by a passage through an end section.

9. An upright boiler-section having a rear upright water-leg and a hollow 'ater-front inclining upwardly and forwardly from the base of the water-leg and having portions thereof spaced apart therefrom to form an intervening combustion chamber, said inclined water-front comnninicating with the water-leg above and below thecomlmstion chambcr and provided with a tire passage thcrelhrough from front to rear, the watcrleg being provided with a transverselire passagetherethrough from side to side, a

portion of the hollow section in front of the water leg and above the combustion chamber being provided \vlth a transverse lirc pasmgc surrounded by water space and comnulnicating with the combustion chainbcr.

10. An upright sectional boiler compris-- ing an ash l o.\',a grate across the upper side of the ash box, hollow upright end and intermediate water-sections mounted side by side upon the ash box, the intermediate sections having upright watei lcgs resting on weeps the ash box at the rear of the grate,said intermediate sections also having upwardlyand forwardly inclined hollow water-frontsoverhanging the grate from front to rear, portions of said water fronts being spaced apart from the water legs to form an intervening combustion chamber, said water fronts forming the rear side of a fire box and provided with a fire passage connecting the the box with the combustion chamber, an additional water-front extending upwardly from the front of the grate some distance above the fire passages in the water-front of the intermediate sections and connected to the and sections, said addi tional water-front being spaced some dis tance apart from the front edges of the in termediate sections and. forming therewith a fuel inlet some distance above the fire passages.

11. A section for a boiler comprising a hollow substantially triangular shell, a vertical passage-waytherethrough leading to a horizontal line, said line connected to another fine by an upright channel in said shell, a third horizontal flue unconnected with the first two, and openings to the inintermediate sections being spaced apart from the rear portions to form a combustionchamber and provided with fire passages thercthrough connecting said combustion chamber with the fire box and surrounded by water space, a separate water-section forming the front of the fire her. and having a fuel inlet some distance above said fire pas.-agcs, said water-front being connected to the end sections for interns:-2a11inication therewith. 7

115A sectional boiler con-1p! a base, a grate on the base, upright end and intermediate water sections rising from the base at the ends and rear side of the grate, the intermediate sections having their front portions inclined upwardly and forwardly from the grate and portions thereof spaced apart from their rear portions to form an intervening combustion chamber and provided with tire passages connecting said ('(Hilbllsl ion chamber and surrounded by water space with the fuel chamber and a ice and rear side of av fire box, portions of the front sides of. the.

5 termediute sections to form an mtervening NV'im hollow waterfront section risin from the Tn witness whereof I have hereunto Sfit base at the front of the grate (n13 extending my hand on this 22nd day of January 1912.

some distance above the fire passages and k r spaeed apart from the front side of the in- WILLIAM BU ILER' E. CHASE, U. THOMPSON.

1110 extending from the grate to the hop of the front sectmn. 

